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Q
I began with orchids little more than a year
ago. Last spring, I bloomed five of 40 plants, and I thought that
not too bad for a beginner. This year I have 60 plants (cattleyas,
phalaenopsis, dendrobiums) growing outdoors in a screened-in patio
measuring 5 x 12 feet facing southwest in
Miami
. It receives good ventilation as well as light;
after
2 pm
, the patio is shaded by a tree. I water weekly
and fertilize once a month with Peters 20-20-20. I have several plants
with wrinkled leaves. They are Laeliocattleya. What causes
this? Leaf color is dark green to light green and I do not see too much
growth, just on a few of them. Why? Am I in time to correct any
mistakes and enjoy a rewarding blooming season?
A It sounds like you have a good location for light
and Peters is one of the most widely used orchid fertilizers in the
world. In
Florida
, if you use 20-20-20 year round for cattleyas you
should have no problems. Cattleyas vary greatly in leaf structure
from their parentage so do not worry about this. If the leaves on your
plants are wrinkling, this suggests the roots are not taking up enough
water even though the medium may be wet. I suspect a breakdown of
the potting mix; repot if the mix is old. If not, try placing a
light cover of sphagnum moss on the surface of the pot to increase
humidity in the root zone. With cattleyas, you get flowers only on new
growths but, as they flower year round, the growths should be at all
stages of maturity. If you are seeing the flower sheaths appear on
the maturing growths then you will almost always get flowers in the
correct season. I think you have made no serious mistakes and you
sound like you are on course to becoming a good grower. —Andy
Easton.
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